Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 18 of 18 for “"OpenSim"”.
-
Stationary Exercise Bicycle Instrumentation and Verification of OpenSim Pelvic Residual Loads in Seated Cycling
… study the accuracy of modeling seated cycling in OpenSim. Five participants cycled at a moderate resistance level for three trials. Force and moment data were collected by seat, handlebar, and pedal load cells, while kinematic data were collected by an optical motion capture system. Participant …
-
Inverse Dynamic Analysis of ACL Reconstructed Knee Joint Biomechanics During Gait and Cycling Using OpenSim
… analyses were performed on processed data using OpenSim to calculate reconstructed and contralateral knee joint contact loads which were then compared between gait and cycling at both moderate and high resistances. Significant differences were found between gait and cycling at either resistance …
-
Simulating control of the ankle joint
… problems. Two alternative programs, PyODE and OpenSim, were explored to evaluate their ability to fill this need. Models and simulations of the human ankle were created in PyODE. This program is useful for creating simple models where the programmer desires a high level of control over model …
-
Biomechanical Modeling of the Masticatory Region
… possible ways to port the ArtiSynth jaw model to OpenSim, which would increase its availability tremendously. To show that our optimization approach works correctly and enables us to set a predefined level of reaction force, we computed multiple simple simulations using a test model as well as an …
-
Patient-Specific Musculoskeletal Modeling of Total Shoulder Arthroplasty
… musculoskeletal models have been developed in OpenSim [2] to analyze muscle function and joint loading of the shoulder [3], [4],[5],[6], [7]. Little work has been done to quantify muscle forces and joint reaction loads in healthy and implanted shoulders using a fully patient-specific approach. …
-
Musculoskeletal Modeling of Back-Support Exoskeletons: Comparative Evaluation of Spine Loads, Muscle Activity, and Optimization Strategies
… The first study compared IJF estimates from OpenSim and the AnyBody Modeling System during symmetric and asymmetric lifting tasks that were performed with and without two BSEs. Both models estimated reduced spinal loading with BSE use, though OpenSim generally predicted larger reductions. …
-
Appropriately complex biomechanical modelling of distance running
… with increasing complexity, were developed using OpenSim. Simulations were compared to experimental data and agreement appeared to increase as model complexity increased. Due to problems with using a fixed length segment, introducing a knee joint alone prevented successful simulations across the …
-
Assessing the Impact of Femur Morphological Variations on Pediatric Hip Joint Biomechanics Using Statistical Shape Modeling
… through kinematics and kinetics analyses in OpenSim. Incorporating the SSM led to slight changes in the pediatric MSMs’ kinematics but had negligible effects on kinetics. Nonetheless, the hip flexion angles from the model were consistent with literature on spontaneous kicking, demonstrating …
-
Dynamic Analysis of Musculoskeletal System Performances during Human Standing and Walking
… and 98 muscle groups was constructed using OpenSim software. The gait measurement database provided by Grant Challenge Competition was used to support the modelling. A set of bone scaling and inverse kinematics procedures was used to refine the model to fit the subject-specific …
-
Muscle force estimation in clinical gait analysis
… the most suitable models for clinical purposes. OpenSim, a free available simulation tool, has been chosen as its musculoskeletal models have been already frequently used and tested. Furthermore, OpenSim provides a straight forward pipeline called SimTrack including both mathematical models. …
-
Modeling the Impact of Helicopter Vibrations on the Musculoskeletal Health of US Army Blackhawk Helicopter Pilots
… analyses of a biomechanical model using OpenSim and motion capture at varying levels of vibration was conducted. This quantifies the response of the spine and the surrounding muscles when vibratory loads are applied while positioned to manipulate the flight controls. A musculoskeletal …
-
Prediction of Human Hand Motions based on Surface Electromyography
… from a biomechanical model available in OpenSim (Delp et al., 2007). A support vector regression (SVR) model is used to firstly predict muscle features from sEMG signals and then to predict joint angles from the estimated muscle features. A set of motion data containing 10 types of …
-
Novel Computational Infant Musculoskeletal Model for Biomechanical Analysis of Infant Movement
… The computational study used a generic GAIT2392 OpenSim musculoskeletal model that was scaled to create a customized subject-specific infant model. By using the motion capture data recorded of the infant during a kicking motion, and a constant ground reaction force value of 52.48 N to represent …
-
Construction and assessment of a computer graphics-based model for wheelchair propulsion
… complex muscles to wheelchair propulsion. OpenSim software was used to construct the model. The model has deep shoulder muscles not included in previous models: upper and middle trapezius, rhomboids major and serratus anterior. As a proof of concept, kinematic and kinetic data collected …
-
Probabilistic Musculoskeletal Simulation Methods to Address Intersegmental Dependencies of the Knee, Hip, and Spine
… by developing a probabilistic plugin for use in OpenSim and performing investigations of the regional interdependence of the knee, hip, and spine involving patients with total joint replacement. An initial study identified how uncertainty in musculoskeletal simulation inputs can propagate through …
-
Effects of Hip Osteoarthritis on Lower Extremity Joint Contact Forces
… (H-OA) and 10 healthy control participants using OpenSim 4.0 [simtk.org, 23]. The generic gait2392 model was scaled to participant demographics, then the inverse kinematics (IK) solution and kinetic data were input into the Residual Reduction Algorithm (RRA) to reduce modeling errors. Kinematic …
-
Towards an algorithm for the prediction of non-contact anterior cruciate ligament injuries
… study, a musculoskeletal model was developed in OpenSim incorporating both anteromedial (AMB) and posterolateral (PLB) bundles of the ACL. Motion capture data of female soccer players (n = 10, mean age = 19.60 ± 1.49 years) performing unanticipated side - step cutting movements were recorded. …
-
Human-spacesuit interaction :
… into an upper-extremity musculoskeletal model in OpenSim to evaluate which muscles are most affected by the spacesuit. Looking specifically at a shoulder abduction/adduction motion, shoulder abductors, adductors, and stabilizer muscle groups are evaluated for significant changes in force from the …